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Subiect
work environment [1]
work parameters [2]
Work performance [1]
work risk [2]
worker [1]
worker in drilling for methane gas [1]
working areas [1]
working cycle [1]
working environment [1]
world [1]
worm gearing [2]
worm-gear-tooth [1]
X ray diffraction [1]
X-ray analysis [1]
X-ray diffraction [3]
X-ray diffractometry [5]
X-ray reflectivity [1]
XPS [1]
XRD [4]
XRD analysis [1]